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Literature summary for 3.1.4.12 extracted from

  • Liu, B.; Hannun, Y.A.
    Purification of rat brain membrane neutral sphingomyelinase (2000), Methods Enzymol., 311, 156-164.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
phosphatidylserine
-
Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Rattus norvegicus 16020
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
sphingomyelin + H2O Rattus norvegicus
-
N-acylsphingosine + choline phosphate
-
?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
Triton X-100, DEAE-Sephacel, heparin-Sepharose, hydroxyapatite, Mono Q, Phenyl-Sepharose, Superose 12 Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
brain
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
146.7
-
-
Rattus norvegicus

Storage Stability

Storage Stability Organism
-70°C, loss of activity Rattus norvegicus
4°C, loss of activity Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
sphingomyelin + H2O
-
Rattus norvegicus N-acylsphingosine + choline phosphate
-
?

Synonyms

Synonyms Comment Organism
neutral sphingomyelinase
-
Rattus norvegicus
SMase
-
Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
6.5 9.5 approx. 25% of maximal activity at pH 6.5, approx. 55% of maximal activity at pH 9.5 Rattus norvegicus